10AN heater hose adaptor fitting for the rear of the thermostat housing on Nissan RB Engines featuring a 1/4" NPT side port for plumbing turbo water lines.
- Nissan RB20DE, RB20DET
- Nissan RB25DE, RB25DET (Including Neo)
- Nissan RB26DETT
- Nissan RB30ET, RB30DET
Please note - the adaptor fitting is not compatible with factory Holden RB30 engine mounts due to clearance issues.
This listing is for the 10AN adaptor fitting only, please check our other listings for full kits. We also have fittings with no side port in our listings.